I am currently working on an SP2 supplement for the War of Jenkin's Ear, concentrating on the battles in Georgia. It also has naval scenarios for Kiss Me Hardy/To Covet Glory.
I have started and stopped a number of Civil War scenarios. I really wanted to do a book on the battles around Atlanta since the battlefields are just a short car drive from my home. I live really close to the site of the Battle of Jug Tavern. (Fortunately later city planners decided that Jug Tavern was a bad name for a town.) Garrard's Cavalry Raid is one that is interesting as it possibly had the only known use of the Athens double barreled cannon. This still can be found in Athens, Ga close to the UGA campus.
I also started and stopped a supplement on the Peninsular campaign. All of these I may get back to work on at some point along with the WWII Third Battle of Kharkov campaign for Chain of Command. At the moment the Jenkin's Ear supplement is priority (since it is complete - just needs playtesting and pictures).
As to retrofitting the current supplement.... Maybe.